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 2022-05-16, 21:54 #441 sweety439     "99(4^34019)99 palind" Nov 2016 (P^81993)SZ base 36 D8516 Posts The generalized repunit probable prime, R2731(685), N-1 has 31.345% factored, all algebraic factors are already entered. Factoring this 167 digit number (a factor of Phi(390,685), i.e. a factor of 685,195+) will enable N-1 proof for R2731(685), since this will make N-1 have >33.333% factored.
 2022-06-17, 16:46 #442 MDaniello     May 2019 Rome, Italy 41 Posts Code: 2684720974...01 N+/-1 350 digits 5548042917...01 N+/-1 497 digits (86^294+2)/6 N-1 598 digits (19607^353+1)/19608 N-1 1511 digits 4687274111...01 N-1 1381 digits (13088^373-1)/13087 N-1 1532 digits (17200^457+1)/17201 N-1 1932 digits (5183^521+1)/5184 N-1 1932 digits (17195^457-1)/17194 N-1 1932 digits In addition to these, several Carol-Kynea primes that lacked any kind of primality proof. Some other primes of this kind were missing from the db at all.

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